US4330782A - Fully-automatic antenna driving device - Google Patents
Fully-automatic antenna driving device Download PDFInfo
- Publication number
- US4330782A US4330782A US06/174,508 US17450880A US4330782A US 4330782 A US4330782 A US 4330782A US 17450880 A US17450880 A US 17450880A US 4330782 A US4330782 A US 4330782A
- Authority
- US
- United States
- Prior art keywords
- switch
- antenna
- radio
- self
- holding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/08—Means for collapsing antennas or parts thereof
- H01Q1/10—Telescopic elements
- H01Q1/103—Latching means; ensuring extension or retraction thereof
Definitions
- This invention relates to a fully-automatic driving device for a power-driven antenna of a radio for use in a vehicle.
- FIG. 1 A system for automatically extending and retracting an antenna arranged on a vehicle body for a radio in a vehicle has been known as shown in FIG. 1.
- the limit switch 6 When the antenna rod extends to a predetermined length, the limit switch 6 is opened or turned off to shut off the driving current for the motor 7 so as to stop the extension of the antenna rod.
- the radio 4 With the radio 4 in the operative condition and the extended antenna rod, when the ignition switch 1 or the radio switch 2 is turned off, the current supply to the radio 4 and the exciting coil 5a of the relay 5 is shut off to turn off the radio 4 and simultaneously to close a normally closed contact 5c. At this moment, the antenna rod has extended and hence a limit switch 8 has been closed to an on state, so that the current flows from the battery 3 between terminals 7b and 7c of the motor 7 through the contact 5c and the switch 8 now to retract the antenna rod.
- the limit switch 8 When the antenna rod has been retracted to a predetermined length and housed in the body, the limit switch 8 is opened to shut off the driving current for the motor 7 so as to stop the retraction of the antenna rod.
- the antenna rod is adapted to extend or retract automatically in response to the on and off of the ignition switch 1 and radio switch 2.
- the ignition switch is often turned off to stop an engine without switching off the radio switch 2.
- the antenna rod will extend at the moment when the ignition switch is again turned on for starting the engine, because of the lock type radio switch 2 remaining in an on condition. If a driver is not aware of the extension of the antenna, there is a danger to a person near the antenna and a risk of a touch of the antenna with a shutter of a garage when a car is being driven into or out of the garage.
- FIG. 1 is a circuit of a device of the prior art as mentioned above.
- FIG. 2 is a circuit of a device of one embodiment of the invention.
- an antenna driving circuit comprises an ignition switch 1, a battery 3, a relay 5, a limit switch 6, a motor 7, a limit switch 8 and the like in the same manner as that in FIG. 1.
- a radio switch 2 different from that in FIG. 1 consists of a relay 2a, a switch 2b for turning on a radio and a switch 2c for turning off the radio.
- the switch 2b is a push type switch which is on only while pushed or depressed and automatically turns off when it is released.
- the switch 2c is off only while pushed.
- the relay 2a Once the relay 2a has been excited, even if the switch 2b is released to turn off, the current still flows through the battery 3, the ignition switch 1, the coil 2d, the contact 2e and the switch 2c to form a self-holding circuit for the relay 2a keeping it in an excited condition so as to maintain the contacts 2e and 2f closed. Accordingly, after the switch 2b has once been pushed to turn on, even if the switch 2b is turned off, the contact 2f will be kept closed to continue supplying the current to the radio 4 and the relay 5.
- the switch 2c is pushed to turn off the radio, so that the exciting current is shut off to release the excited condition of the relay 2a so as to open the contacts 2e and 2f.
- the current supply to the radio 4 and the relay 5 is interrupted to make the radio 4 inoperative as that shown in FIG. 1 and simultaneously a current flows through a contact 5c and the limit switch 8 to the motor 7 to retract the antenna rod.
- the ignition switch 1 is turned off, so that the current flowing through the coil 2d is interrupted to release the self-holding circuit so as to open the contacts 2e and 2f, with the result that the current to the radio 4 and the relay 5 is interrupted. Therefore, the exciting coil 5a of the relay 5 is deenergized to close the contact 5c, so that a current flows through the contact 5c and the limit switch 8 to the motor 7 to retract the antenna rod.
Landscapes
- Details Of Aerials (AREA)
- Lock And Its Accessories (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1979108328U JPS5626406U (ko) | 1979-08-06 | 1979-08-06 | |
JP54/108328[U] | 1979-08-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
US4330782A true US4330782A (en) | 1982-05-18 |
Family
ID=14481905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/174,508 Expired - Lifetime US4330782A (en) | 1979-08-06 | 1980-08-01 | Fully-automatic antenna driving device |
Country Status (5)
Country | Link |
---|---|
US (1) | US4330782A (ko) |
JP (1) | JPS5626406U (ko) |
DE (1) | DE3029524C2 (ko) |
FR (1) | FR2463522A1 (ko) |
GB (1) | GB2056713B (ko) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4672278A (en) * | 1985-10-09 | 1987-06-09 | Nartron Corporation | Antenna relay method and apparatus |
US4730152A (en) * | 1986-11-17 | 1988-03-08 | General Motors Corporation | Vehicle power antenna control with drive stress limiting |
US4733101A (en) * | 1986-11-17 | 1988-03-22 | General Motors Corporation | Vehicle power antenna control with inhibit during cranking |
US4804899A (en) * | 1987-05-18 | 1989-02-14 | Gerard A. Wurdack & Associates, Inc. | Antenna rotator controllers and conversion systems therefor |
GB2209248A (en) * | 1987-09-01 | 1989-05-04 | Michie Dr Jonathan | Radio-controlled car aerial |
US4875053A (en) * | 1987-09-30 | 1989-10-17 | Harada Kogyo Kabushiki Kaisha | Drive control device for an electrically-driven extending and retracting antenna |
US4950091A (en) * | 1988-01-11 | 1990-08-21 | Harada Kogyo Kabushiki Kaisha | Rod antenna control system for automobiles |
US20060118075A1 (en) * | 2004-12-08 | 2006-06-08 | Toyota Jidosha Kabushiki Kaisha | Control device of internal combustion engine |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3717065A1 (de) * | 1987-05-21 | 1988-12-08 | Opel Adam Ag | Kraftfahrzeug-navigationsvorrichtung mit einer motorisch aus- und einfahrbaren antenne |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2640995A1 (de) * | 1976-09-11 | 1978-03-16 | Daimler Benz Ag | Aus- und einfahrbare antenne fuer rundfunkempfaenger |
US4126820A (en) * | 1976-09-11 | 1978-11-21 | Daimler-Benz Aktiengesellschaft | Lowerable antenna for radio receivers |
US4198637A (en) * | 1978-07-17 | 1980-04-15 | General Motors Corporation | Control for an electric motor-driven telescoping radio antenna |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1932338A1 (de) * | 1969-06-26 | 1971-01-07 | Bosch Elektronik Gmbh | Teleskopantenne |
IT946422B (it) * | 1972-01-10 | 1973-05-21 | Alfa Romeo Spa | Circuito di alimentazione di ener gia elettrica per dispositivi uti lizzatori installati su un autovei colo |
US4140952A (en) * | 1977-03-23 | 1979-02-20 | Chrysler Corporation | Offset compensated electronic current sensor and controller |
-
1979
- 1979-08-06 JP JP1979108328U patent/JPS5626406U/ja active Pending
-
1980
- 1980-08-01 US US06/174,508 patent/US4330782A/en not_active Expired - Lifetime
- 1980-08-04 DE DE3029524A patent/DE3029524C2/de not_active Expired
- 1980-08-05 FR FR8017292A patent/FR2463522A1/fr active Granted
- 1980-08-06 GB GB8025581A patent/GB2056713B/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2640995A1 (de) * | 1976-09-11 | 1978-03-16 | Daimler Benz Ag | Aus- und einfahrbare antenne fuer rundfunkempfaenger |
US4126820A (en) * | 1976-09-11 | 1978-11-21 | Daimler-Benz Aktiengesellschaft | Lowerable antenna for radio receivers |
US4198637A (en) * | 1978-07-17 | 1980-04-15 | General Motors Corporation | Control for an electric motor-driven telescoping radio antenna |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4672278A (en) * | 1985-10-09 | 1987-06-09 | Nartron Corporation | Antenna relay method and apparatus |
US4730152A (en) * | 1986-11-17 | 1988-03-08 | General Motors Corporation | Vehicle power antenna control with drive stress limiting |
US4733101A (en) * | 1986-11-17 | 1988-03-22 | General Motors Corporation | Vehicle power antenna control with inhibit during cranking |
DE3738885A1 (de) * | 1986-11-17 | 1988-05-26 | Gen Motors Corp | Kraftfahrzeug-automatikantennensteuerung mit sperre waehrend des anlassens |
US4804899A (en) * | 1987-05-18 | 1989-02-14 | Gerard A. Wurdack & Associates, Inc. | Antenna rotator controllers and conversion systems therefor |
GB2209248A (en) * | 1987-09-01 | 1989-05-04 | Michie Dr Jonathan | Radio-controlled car aerial |
US4875053A (en) * | 1987-09-30 | 1989-10-17 | Harada Kogyo Kabushiki Kaisha | Drive control device for an electrically-driven extending and retracting antenna |
US4950091A (en) * | 1988-01-11 | 1990-08-21 | Harada Kogyo Kabushiki Kaisha | Rod antenna control system for automobiles |
US20060118075A1 (en) * | 2004-12-08 | 2006-06-08 | Toyota Jidosha Kabushiki Kaisha | Control device of internal combustion engine |
US7287501B2 (en) * | 2004-12-08 | 2007-10-30 | Toyota Jidosha Kabushiki Kaisha | Control device of internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
DE3029524C2 (de) | 1984-05-10 |
GB2056713B (en) | 1983-05-05 |
FR2463522A1 (fr) | 1981-02-20 |
DE3029524A1 (de) | 1981-03-26 |
GB2056713A (en) | 1981-03-18 |
FR2463522B1 (ko) | 1985-01-11 |
JPS5626406U (ko) | 1981-03-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |